looking into. as kristen mentioned, nbc news has confirmed that there were concerns someone other than petraeus had been accessing his e-mail. which obviously is a concern if you're the director of the cia. >> there's no doubt. and part of why people are describing this as such a shock, such a punch to the stomach, here's a guy, long record of public service, long record, first at the military, now at the cia, serving the country, and considered a man of impeachable -- unimpeachable integrity, the question is, why was there an fbi investigation? we still don't know. but that is a big piece that we're going to learn more about, there's no doubt. >> what is the impact that you see on both the military community and the intelligence community? >> a lot of people are shocked. again, if you're not part of the washington community of defense officials, and people on capitol hill, and the administration and the media, you don't recognize, you can't know just how big a shock this is to people. this is a guy who's been someone lots of people have known and worked with. the president's got to remake his national security team. i don't think he wasn't counting on replacing the cia director.